diff options
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/sgml/brin.sgml | 4 | ||||
| -rw-r--r-- | doc/src/sgml/func.sgml | 15 |
2 files changed, 19 insertions, 0 deletions
diff --git a/doc/src/sgml/brin.sgml b/doc/src/sgml/brin.sgml index 5140a38baad..ad11109775f 100644 --- a/doc/src/sgml/brin.sgml +++ b/doc/src/sgml/brin.sgml @@ -80,6 +80,10 @@ or by automatic summarization executed by autovacuum, as insertions occur. (This last trigger is disabled by default and can be enabled with the <literal>autosummarize</literal> parameter.) + Conversely, a range can be de-summarized using the + <function>brin_desummarize_range(regclass, bigint)</function> range, + which is useful when the index tuple is no longer a very good + representation because the existing values have changed. </para> </sect2> diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml index 25c18d107c8..19329dd1033 100644 --- a/doc/src/sgml/func.sgml +++ b/doc/src/sgml/func.sgml @@ -19660,6 +19660,14 @@ postgres=# SELECT * FROM pg_walfile_name_offset(pg_stop_backup()); <primary>gin_clean_pending_list</primary> </indexterm> + <indexterm> + <primary>brin_summarize_range</primary> + </indexterm> + + <indexterm> + <primary>brin_desummarize_range</primary> + </indexterm> + <para> <xref linkend="functions-admin-index-table"> shows the functions available for index maintenance tasks. @@ -19692,6 +19700,13 @@ postgres=# SELECT * FROM pg_walfile_name_offset(pg_stop_backup()); </row> <row> <entry> + <literal><function>brin_desummarize_range(<parameter>index</> <type>regclass</>, <parameter>blockNumber</> <type>bigint</type>)</function></literal> + </entry> + <entry><type>integer</type></entry> + <entry>de-summarize the page range covering the given block, if summarized</entry> + </row> + <row> + <entry> <literal><function>gin_clean_pending_list(<parameter>index</> <type>regclass</>)</function></literal> </entry> <entry><type>bigint</type></entry> |